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SAS Technical Papers » SAS/STAT, SAS/IML & SAS/OR Software

Papers Topic List 
Date Title File Size
March 2008 Zero-Inflated Poisson and Zero-Inflated Negative Binomial Models Using the COUNTREG Procedure (PDF)
This paper studies the performance of different count models on a simulated example. The results demonstrate that among the count models we consider, in many cases a Poisson model tends to be overly restrictive.
245 KB
March 2008 Using SAS/OR to Improve Emergency Response Times with Better Ambulance Placement (PDF)
Using the new SAS/OR procedures, SAS software and the San Francisco Fire Department analyzed emergency response operations to optimize ambulance locations and relate that information into dispatch procedures to decrease response times. This paper discusses the formulation of the problem, solution, and practical challenges to implementation.
105 KB
October 1997 TS-562: PROC FASTCLUS may give slightly different results on different operating systems (PDF) 11 KB
May 1997 TS-542: Internal Draft Doc: Standardized Solution in CALIS, EQS and LISREL(PDF) 111 KB
July 1996 TS-509: An introduction to Partial Least Squares Regression (PDF) 148 KB
April 1995 TS-450: A Tutorial on Logistic Regression (PDF) 96 KB
March 1993 TS-279: A Note On Fitting the Probit Model in SAS(PDF) 26 KB
February 1994 TS-274: Some Issues in Using PROC LOGISTIC for Binary Logistic Regression (PDF) 168 KB
January 1997 TS-131: Some Examples of Using the IPF function in IML 17 KB